For Crust: Finely process graham crackers in a food process. Pour into a bowl. Process walnuts until finely minced and add to graham cracker crumbs. Add sugar and blend dry ingredients thoroughly. Pour in margarine and mix. Press graham cracker mixture into the bottom of a 9 or 10 springform pan. Place in refrigerator.
For Filling: In a small pan, warm the creamer but do not allow to boil. Pour into a small bowl and add the gelatin and sugar; Stir and set aside. Process the cream cheese until smooth. While processing, slowly add the creamer mixture. When creamy, add pumpkin, maple syrup and pie spice. Pour filling into crust and refrigerate at least 2 hours before serving.
Can also be made in batches in a blender.
Topping ideas: Vegan whipped cream (Hip Whip), pecan halves, or pomegranate seeds make it very pretty. Also try the yummy Coconut Whipped Topping recipe I added to VegWeb.http://www.duofilia.blogspot.com